Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A display device comprising: an active area and a non-active area; a plurality of data lines arranged in the active area; a plurality of data link lines connected to the plurality of data lines; an encapsulation layer having at least one organic layer and at least one inorganic layer; a touch sensor having a plurality of driving touch electrodes and a plurality of sensing touch electrodes arranged on the encapsulation layer; a plurality of driving touch lines arranged on a side surface of the encapsulation layer and applying driving signals to the plurality of driving touch electrodes; and a plurality of sensing touch lines connected to the plurality of sensing touch electrodes and receiving sensing signals from the plurality of sensing touch electrodes, wherein a dam is formed in the non-active area to prevent the encapsulation layer from collapsing, and at least one of the plurality of data link lines overlaps at least one of the plurality of driving touch lines and the dam in the non-active area, wherein in the non-active area, none of the plurality of sensing touch lines overlaps any of the plurality of data link lines, wherein the plurality of driving touch electrodes are arranged in a same direction as the plurality of data lines, wherein a plurality of data pads are arranged to electrically connect the plurality of data link lines, wherein a plurality of driving touch pads are arranged to electrically connect the plurality of driving touch lines, and a first group and a second group of the plurality of driving touch pads are arranged at both outer sides of the plurality of data pads, wherein a plurality of sensing touch pads are arranged to electrically connect the plurality of sensing touch lines, and are arranged at an outer side of the first group or the second group of the plurality of driving touch pads, and wherein each outer side is a side facing a direction parallel to an adjacent side of the active area and away from a center axis of the display device.
A display device integrates an active area for displaying content and a non-active area for peripheral circuitry. The active area contains data lines connected to data link lines, which extend into the non-active area. An encapsulation layer, composed of organic and inorganic layers, protects the display components. A touch sensor, placed on the encapsulation layer, includes driving and sensing touch electrodes. Driving touch lines, positioned on the side surface of the encapsulation layer, deliver signals to the driving touch electrodes, while sensing touch lines receive signals from the sensing touch electrodes. A dam in the non-active area prevents encapsulation layer collapse. In the non-active area, data link lines overlap with driving touch lines and the dam, but do not overlap with sensing touch lines. The driving touch electrodes align with the data lines. Data pads connect the data link lines, while driving touch pads connect the driving touch lines and are grouped on both outer sides of the data pads. Sensing touch pads, connecting the sensing touch lines, are placed on the outer side of one of the driving touch pad groups. The outer sides are defined as edges parallel to the active area's adjacent side and away from the display device's center axis. This design optimizes space utilization and signal integrity in the non-active area.
2. The display device of claim 1 , further comprising a touch buffer layer arranged on the encapsulation layer.
A display device includes a substrate, a thin-film transistor layer on the substrate, a light-emitting layer on the thin-film transistor layer, and an encapsulation layer covering the light-emitting layer. The encapsulation layer protects the light-emitting layer from moisture and oxygen. The display device further includes a touch buffer layer arranged on the encapsulation layer. The touch buffer layer provides a smooth surface for touch sensing components, ensuring reliable touch input detection while maintaining display performance. The touch buffer layer may be made of a flexible, transparent material to avoid interfering with light emission from the light-emitting layer. The thin-film transistor layer controls the light-emitting layer to produce images, while the encapsulation layer prevents degradation of the light-emitting layer over time. The touch buffer layer enhances durability and touch responsiveness without compromising display quality. This design integrates touch functionality directly into the display structure, reducing the need for separate touch panels and improving overall device thinness and efficiency. The combination of the encapsulation and touch buffer layers ensures long-term reliability and consistent touch performance.
3. The display device of claim 2 , wherein the touch buffer layer is arranged between the encapsulation layer and the plurality of driving touch lines or the plurality of sensing touch lines.
A display device includes a touch buffer layer positioned between an encapsulation layer and either driving touch lines or sensing touch lines. The device is designed to improve touch sensitivity and reliability in a display panel. The encapsulation layer protects underlying components, such as organic light-emitting diodes (OLEDs), from moisture and oxygen. The touch buffer layer provides mechanical and electrical insulation, reducing interference between the touch lines and the display circuitry. The driving touch lines generate electrical fields for touch detection, while the sensing touch lines detect changes in capacitance caused by user interaction. By placing the touch buffer layer between the encapsulation layer and the touch lines, the device minimizes signal distortion and enhances touch accuracy. This configuration also simplifies manufacturing by integrating touch functionality directly into the display stack. The invention addresses challenges in touch-sensitive displays, such as signal noise, cross-talk, and durability, by optimizing the layer arrangement. The touch buffer layer may be made of an insulating material, such as silicon oxide or polyimide, to ensure stable performance. The display device is suitable for applications requiring high touch responsiveness, such as smartphones, tablets, and interactive kiosks.
4. The display device of claim 2 , further comprising a touch insulation layer arranged on the touch buffer layer.
A display device includes a touch buffer layer positioned between a touch sensor layer and a display panel to reduce interference between the touch sensor layer and the display panel. The touch buffer layer is made of a material with a dielectric constant lower than that of the touch sensor layer and the display panel, minimizing capacitive coupling and signal distortion. The display device further includes a touch insulation layer arranged on the touch buffer layer to enhance electrical insulation and prevent short circuits between the touch sensor layer and the display panel. The touch insulation layer may be made of an insulating material such as polyimide or silicon oxide, ensuring reliable touch sensing performance while maintaining display quality. This configuration improves touch sensitivity and accuracy by reducing noise and interference, particularly in high-resolution or flexible display applications where proximity between the touch sensor and display panel is critical. The touch buffer layer and touch insulation layer work together to maintain signal integrity and prevent electrical leakage, addressing challenges in integrating touch functionality with advanced display technologies.
5. The display device of claim 4 , further comprising a bridge electrode arranged on the touch buffer layer.
A display device with an integrated touch sensor includes a substrate, a thin-film transistor (TFT) layer, a color filter layer, and a touch buffer layer. The TFT layer forms an array of transistors for driving display pixels, while the color filter layer provides color filtering for the display. The touch buffer layer is positioned above the color filter layer and includes a touch sensor pattern for detecting touch inputs. The touch sensor pattern consists of multiple conductive lines arranged in a grid to form touch-sensitive regions. A bridge electrode is arranged on the touch buffer layer to electrically connect separate segments of the touch sensor pattern, ensuring continuous signal transmission across the display. The bridge electrode is positioned to avoid interfering with the underlying display components while maintaining the structural integrity of the touch sensor. This design integrates touch sensing capabilities directly into the display stack, reducing thickness and improving responsiveness compared to traditional on-cell or in-cell touch solutions. The bridge electrode ensures reliable electrical connections in the touch sensor pattern, enhancing touch accuracy and durability. The device is suitable for applications requiring high-resolution displays with seamless touch functionality, such as smartphones, tablets, and digital signage.
6. The display device of claim 5 , wherein the touch insulation layer is arranged between the bridge electrode and the touch sensor.
A display device with an integrated touch sensor includes a bridge electrode and a touch insulation layer positioned between the bridge electrode and the touch sensor. The bridge electrode is used to electrically connect conductive lines in the display panel, such as gate lines or data lines, to external circuits. The touch insulation layer prevents electrical interference between the bridge electrode and the touch sensor, ensuring accurate touch detection. The touch sensor detects user input by sensing changes in capacitance or other electrical properties when a user interacts with the display surface. The display panel may include a substrate, a thin-film transistor layer, and a color filter layer, with the touch sensor either embedded within the panel or placed on top of it. The bridge electrode is typically made of a conductive material like metal or indium tin oxide (ITO) and is patterned to avoid overlapping the touch sensor electrodes. The touch insulation layer is an insulating material, such as silicon nitride or polyimide, that electrically isolates the bridge electrode from the touch sensor while maintaining optical transparency. This configuration allows for a compact, multi-functional display with integrated touch functionality.
7. The display device of claim 5 , wherein the bridge electrode or the touch sensor is in the form of a mesh, the mesh comprising a plurality of open areas.
A display device with integrated touch sensing includes a bridge electrode or touch sensor configured as a mesh structure. The mesh comprises multiple open areas that allow light to pass through, reducing visual obstruction on the display. This design improves transparency and touch sensitivity while maintaining electrical connectivity. The mesh structure can be formed using conductive materials such as metal or transparent conductive oxides, ensuring minimal interference with display performance. The open areas in the mesh optimize light transmission, enhancing display clarity and touch responsiveness. This configuration is particularly useful in applications requiring high transparency, such as augmented reality displays or touch-sensitive screens where visual quality is critical. The mesh design also supports flexible or foldable displays by allowing the conductive elements to bend without breaking. The touch sensor or bridge electrode may be embedded within the display stack or positioned on a separate layer, depending on the specific application. The open areas in the mesh can be uniformly distributed or patterned to balance conductivity and transparency. This approach addresses the challenge of integrating touch functionality without compromising display visibility or performance.
8. The display device of claim 7 , further comprising an anode electrode, a cathode electrode, and a light emitting layer arranged between the anode electrode and the cathode electrode.
This invention relates to display devices, specifically organic light-emitting diode (OLED) displays, addressing the need for improved light emission efficiency and reliability. The device includes a substrate, a first electrode layer, a second electrode layer, and an organic light-emitting layer positioned between the first and second electrode layers. The first electrode layer is formed on the substrate and includes a conductive material with a work function that facilitates efficient electron injection into the organic light-emitting layer. The second electrode layer is positioned opposite the first electrode layer and includes a conductive material with a work function that promotes efficient hole injection into the organic light-emitting layer. The organic light-emitting layer emits light when an electric field is applied between the first and second electrode layers, causing electrons and holes to recombine within the layer. The device further includes an anode electrode, a cathode electrode, and a light-emitting layer arranged between the anode and cathode electrodes. The anode electrode injects holes into the light-emitting layer, while the cathode electrode injects electrons, enhancing the recombination process and improving light emission efficiency. The structure ensures balanced charge injection, reducing power consumption and extending the device's lifespan. The invention is particularly useful in high-performance display applications requiring bright, energy-efficient, and long-lasting light emission.
9. The display device of claim 8 , further comprising a bank on the anode electrode, the bank defining a plurality of pixel areas.
A display device includes a substrate with a plurality of pixel areas, each containing an anode electrode, a light-emitting layer, and a cathode electrode. The anode electrode is patterned to form a plurality of separate anode regions, each corresponding to a pixel area. The light-emitting layer is formed over the anode electrode and includes a first light-emitting material and a second light-emitting material, where the first material emits light of a first color and the second material emits light of a second color. The cathode electrode is formed over the light-emitting layer. The device further includes a bank structure on the anode electrode that defines the plurality of pixel areas, ensuring proper separation and alignment of the light-emitting materials within each pixel area. This configuration allows for precise control of light emission in each pixel, improving display uniformity and color accuracy. The bank structure helps isolate the pixel areas, preventing cross-contamination between different light-emitting materials and enhancing the overall performance of the display. The device is particularly useful in high-resolution displays where accurate color reproduction and pixel definition are critical.
10. The display device of claim 9 , wherein each of the plurality of open areas overlaps a corresponding one of the plurality of pixel areas.
A display device includes a substrate with a plurality of pixel areas and a plurality of open areas. The open areas are positioned such that each open area overlaps a corresponding pixel area. The substrate may be a flexible or rigid material, and the pixel areas are regions where light-emitting elements, such as organic light-emitting diodes (OLEDs), are formed. The open areas are regions where the substrate is removed or modified to allow light to pass through or to reduce material usage. This configuration improves display performance by enhancing light extraction efficiency or reducing parasitic capacitance. The overlapping arrangement ensures that the open areas do not interfere with the active display regions while optimizing structural integrity. The device may also include additional layers, such as encapsulation layers or conductive traces, to support the display functionality. This design is particularly useful in flexible or high-resolution displays where material efficiency and optical performance are critical.
11. The display device of claim 1 , wherein in the active area, the plurality of driving touch lines are arranged parallel to the plurality of data lines, and the plurality of sensing touch lines are arranged parallel to a plurality of gate lines.
The invention relates to a display device incorporating touch functionality, specifically addressing the arrangement of driving and sensing touch lines within the active display area to optimize touch detection and data signal transmission. The display device includes an active area where multiple driving touch lines run parallel to the data lines, which are responsible for transmitting image data to the display pixels. Additionally, multiple sensing touch lines are arranged parallel to the gate lines, which control the row-wise activation of pixels during display operations. This configuration ensures that the driving touch lines, which send touch signals, do not interfere with the data lines while the sensing touch lines, which detect touch inputs, align with the gate lines to maintain efficient signal routing. The parallel arrangement of driving touch lines with data lines and sensing touch lines with gate lines enhances touch sensitivity and display performance by minimizing cross-talk and optimizing the spatial layout of touch and display control signals. The design aims to improve the integration of touch functionality within the display, enabling more accurate and responsive touch detection without compromising display quality.
12. The display device of claim 1 , further comprising a thin-film-transistor having a gate electrode, a semiconductor layer, a source electrode, and a drain electrode.
A display device includes a thin-film transistor (TFT) with a gate electrode, a semiconductor layer, a source electrode, and a drain electrode. The TFT is integrated into the display to control pixel activation. The gate electrode modulates the conductivity of the semiconductor layer, while the source and drain electrodes facilitate current flow. This configuration enables precise control of pixel brightness and color, improving display performance. The TFT structure is optimized for high-resolution and low-power operation, addressing challenges in modern display technology such as power efficiency and response time. The semiconductor layer, typically made of amorphous silicon, polycrystalline silicon, or oxide materials, ensures stable electrical characteristics. The source and drain electrodes are positioned to minimize resistance and enhance signal integrity. This design is particularly useful in active-matrix organic light-emitting diode (AMOLED) and liquid crystal display (LCD) applications, where precise transistor control is critical for image quality. The TFT's compact size and integration into the display substrate reduce manufacturing complexity and cost. The overall system enhances display functionality by providing uniform brightness, fast response times, and energy efficiency.
13. The display device of claim 12 , wherein the plurality of driving touch pads or sensing touch pads include a lower touch pad electrode and an upper touch pad electrode.
A display device incorporates touch-sensitive functionality by integrating a plurality of touch pads, which may function as either driving or sensing touch pads. These touch pads are structured with a lower touch pad electrode and an upper touch pad electrode, enabling precise touch detection and interaction. The touch pads are arranged in a grid or array configuration, allowing for multi-touch capabilities and accurate touch localization. The lower and upper electrodes may be separated by an insulating layer or air gap to prevent electrical interference while maintaining sensitivity. The device may also include a display panel, such as an LCD or OLED, with the touch pads overlaid or integrated into the display structure. The touch pads can detect touch inputs by measuring changes in capacitance or resistance between the electrodes when a user interacts with the display surface. This design enhances touch responsiveness and durability while minimizing visual obstructions. The device may further include a controller to process touch signals and determine touch coordinates, enabling seamless integration with touch-based applications. The dual-electrode structure improves signal-to-noise ratio and reduces false touch detections, ensuring reliable performance in various environments.
14. The display device of claim 13 , wherein the lower touch pad electrode is formed in the same layer as the source electrode or the drain electrode.
A display device includes a touch-sensitive display panel with a touch pad electrode structure. The device addresses the challenge of integrating touch sensing functionality into a display without increasing manufacturing complexity or cost. The touch pad electrode structure includes an upper touch pad electrode and a lower touch pad electrode, both positioned on opposite sides of a substrate. The lower touch pad electrode is formed in the same layer as either the source electrode or the drain electrode of a thin-film transistor (TFT) within the display panel. This integration simplifies the manufacturing process by eliminating the need for additional layers or steps, reducing production costs and maintaining display performance. The touch pad electrodes are configured to detect touch inputs by sensing changes in capacitance or other electrical properties when a user interacts with the display. The device may also include a display driver circuit and a touch sensor driver circuit to control the display and touch sensing functions, respectively. The touch pad electrodes are electrically connected to the touch sensor driver circuit to enable touch input detection. This design ensures seamless integration of touch functionality while maintaining the structural integrity and performance of the display panel.
15. The display device of claim 14 , wherein the upper touch pad electrode is formed in the same layer as the plurality of driving touch electrodes or the plurality of sensing touch electrodes.
A display device integrates touch sensing functionality with a display panel, addressing the challenge of combining touch input and display output in a compact, efficient design. The device includes a display panel with a touch sensing layer that comprises driving touch electrodes and sensing touch electrodes for detecting touch inputs. Additionally, the device features an upper touch pad electrode, which is positioned above the display panel and is used for touch input detection. The upper touch pad electrode is formed in the same layer as either the driving touch electrodes or the sensing touch electrodes, optimizing manufacturing efficiency by reducing the number of layers required. This integration simplifies the device structure, reduces production complexity, and enhances reliability by minimizing potential misalignments between layers. The upper touch pad electrode may be used for specific touch input functions, such as gestures or shortcuts, while the underlying touch electrodes handle general touch sensing across the display. The design ensures seamless touch interaction without compromising display performance, making it suitable for smartphones, tablets, and other touch-sensitive electronic devices.
16. The display device of claim 15 , further comprising a touch pad contact hole formed through the touch insulation layer and the touch buffer layer, wherein the lower touch pad electrode is connected to the upper touch pad electrode in the touch pad contact hole.
A display device includes a substrate with a display area and a non-display area. The device has a touch sensor layer over the display area, including a lower touch pad electrode and an upper touch pad electrode. The lower touch pad electrode is formed on a touch buffer layer, and the upper touch pad electrode is formed on a touch insulation layer over the lower touch pad electrode. The touch sensor layer also includes a touch pad contact hole that penetrates both the touch insulation layer and the touch buffer layer. This contact hole allows electrical connection between the lower and upper touch pad electrodes, enabling signal transmission or grounding. The touch sensor layer may be part of a larger touch sensing system that detects user input. The display device may also include additional layers such as a thin-film transistor layer for driving display elements. The touch pad contact hole ensures proper electrical continuity between the stacked touch pad electrodes, improving touch sensitivity and reliability. This design is particularly useful in capacitive touchscreens where multiple conductive layers are required for sensing and shielding purposes.
17. A display device comprising: an active area and a non-active area; an anode electrode, a cathode electrode, and alight emitting layer arranged between the anode electrode and the cathode electrode; a plurality of data lines arranged in the active area; a plurality of data link lines connected to the plurality of data lines; an encapsulation layer arranged on the cathode electrode and having at least one organic layer and at least one inorganic layer; a touch sensor having a plurality of driving touch electrodes and a plurality of sensing touch electrodes arranged on the encapsulation layer; a plurality of driving touch lines arranged on a side surface of the encapsulation layer and applying driving signals to the plurality of driving touch electrodes, wherein the plurality of driving touch lines overlap a first portion of the cathode electrode in the non-active area; and a plurality of sensing touch lines connected to the plurality of sensing touch electrodes and receiving sensing signals from the plurality of sensing touch electrodes, wherein the plurality of sensing touch lines overlap a second portion of the cathode electrode in the non-active area, wherein a dam is formed in the non-active area to prevent the encapsulation layer from collapsing, and at least one of the plurality of data link lines overlaps at least one of the plurality of driving touch lines and the dam in the non-active area, wherein in the non-active area, none of the plurality of sensing touch lines overlaps any of the plurality of data link lines, wherein the plurality of driving touch electrodes are arranged in a same direction as the plurality of the data lines, wherein a plurality of data pads are arranged to electrically connect the plurality of data link lines, wherein a plurality of driving touch pads are arranged to electrically connect the plurality of driving touch lines, and a first group and a second group of the plurality of driving touch pads are arranged at both outer sides of the plurality of data pads, wherein a plurality of sensing touch pads are arranged to electrically connect the plurality of sensing touch lines, and are arranged at an outer side of the first group or the second group of the plurality of driving touch pads, and wherein each outer side is a side facing a direction parallel to an adjacent side of the active area and away from a center axis of the display device.
This invention relates to a display device with integrated touch sensing capabilities, addressing the challenge of efficiently integrating touch sensors while maintaining display performance and reliability. The device includes an active area for displaying images and a non-active area for routing electrical connections. The display structure comprises an anode electrode, a cathode electrode, and a light-emitting layer sandwiched between them. Data lines are arranged in the active area, connected to data link lines that extend into the non-active area. An encapsulation layer, consisting of organic and inorganic layers, protects the light-emitting layer and supports a touch sensor on its surface. The touch sensor includes driving and sensing touch electrodes, with corresponding touch lines that overlap portions of the cathode electrode in the non-active area. A dam structure in the non-active area prevents encapsulation layer collapse. The data link lines overlap driving touch lines and the dam, while sensing touch lines avoid overlapping data link lines. Driving touch electrodes align with data lines. Data pads connect data link lines, while driving and sensing touch pads connect their respective touch lines. Driving touch pads are grouped on either side of the data pads, and sensing touch pads are placed outside these groups, all positioned along the outer edges of the non-active area. This design optimizes space utilization and signal integrity in the display periphery.
18. The display device of claim 17 , further comprising a touch buffer layer arranged on the encapsulation layer.
A display device includes a substrate, a thin-film transistor layer on the substrate, and a light-emitting layer on the thin-film transistor layer. An encapsulation layer is formed over the light-emitting layer to protect it from moisture and oxygen. The encapsulation layer comprises a first inorganic layer, an organic layer, and a second inorganic layer, where the organic layer is sandwiched between the first and second inorganic layers. The encapsulation layer is designed to prevent degradation of the light-emitting layer by blocking external contaminants. Additionally, the display device includes a touch buffer layer arranged on the encapsulation layer. The touch buffer layer provides a smooth surface for integrating touch-sensitive components, such as touch sensors, while maintaining the structural integrity of the encapsulation layer. This configuration allows for a flexible or foldable display that can detect touch inputs while protecting the underlying light-emitting elements from environmental damage. The combination of the encapsulation and touch buffer layers ensures durability and functionality in flexible or foldable display applications.
19. The display device of claim 18 , wherein the touch buffer layer is arranged between the encapsulation layer and the plurality of driving touch lines or the plurality of sensing touch lines.
A display device with integrated touch sensing functionality includes a substrate, an encapsulation layer, and a touch buffer layer positioned between the encapsulation layer and a plurality of driving touch lines or sensing touch lines. The touch buffer layer is designed to reduce interference between the touch sensing components and the underlying display elements, improving signal integrity and touch accuracy. The encapsulation layer protects the display components from environmental factors such as moisture and oxygen. The touch lines, which may be driving or sensing lines, are arranged to detect touch inputs by generating and receiving electrical signals. The touch buffer layer ensures that these signals are not disrupted by the encapsulation layer or other display layers, maintaining reliable touch performance. This configuration is particularly useful in flexible or foldable displays where maintaining signal integrity is challenging due to mechanical stress and environmental exposure. The invention addresses the problem of touch signal degradation in advanced display technologies by strategically placing the touch buffer layer to isolate touch sensing components from potential interference sources.
20. The display device of claim 18 , further comprising a touch insulation layer arranged on the touch buffer layer.
A display device includes a touch buffer layer positioned between a touch sensor layer and a display panel to reduce interference between the touch sensor and the display panel. The touch buffer layer is made of a material with a dielectric constant that minimizes capacitive coupling between the touch sensor and the display panel, improving touch sensitivity and display performance. The device also includes a touch insulation layer arranged on the touch buffer layer to further enhance insulation and reduce noise. The touch insulation layer is designed to prevent electrical interference from the display panel from affecting the touch sensor, ensuring accurate touch detection. The combination of the touch buffer layer and the touch insulation layer improves the overall reliability and responsiveness of the touch display system. This design is particularly useful in high-resolution displays where minimizing interference is critical for maintaining touch accuracy and display quality. The materials and thicknesses of the touch buffer and insulation layers are optimized to balance electrical insulation, mechanical stability, and manufacturing feasibility.
21. The display device of claim 20 , further comprising a bridge electrode arranged on the touch buffer layer.
A display device includes a substrate, a thin-film transistor (TFT) layer on the substrate, and a touch buffer layer over the TFT layer. The device further includes a bridge electrode arranged on the touch buffer layer. The bridge electrode is electrically connected to a touch electrode layer, which is positioned above the touch buffer layer. The touch electrode layer includes multiple touch electrodes configured to detect touch inputs. The bridge electrode provides electrical connectivity between the touch electrodes, enabling touch sensing functionality. The TFT layer includes transistors and other circuitry for driving display elements, such as organic light-emitting diodes (OLEDs) or liquid crystal elements. The touch buffer layer insulates the TFT layer from the touch electrode layer, preventing electrical interference. The bridge electrode may be formed from a conductive material, such as metal or transparent conductive oxide (TCO), and is patterned to ensure proper electrical connections while maintaining display performance. This configuration integrates touch sensing and display functions in a compact structure, improving device usability and reducing manufacturing complexity. The bridge electrode ensures reliable signal transmission between touch electrodes, enhancing touch sensitivity and accuracy.
22. The display device of claim 21 , wherein the touch insulation layer is arranged between the bridge electrode and the touch sensor.
A display device with an integrated touch sensor includes a bridge electrode and a touch insulation layer positioned between the bridge electrode and the touch sensor. The touch insulation layer electrically isolates the bridge electrode from the touch sensor, preventing interference or short circuits while maintaining touch functionality. The bridge electrode connects conductive elements, such as signal lines or electrodes, across gaps or non-conductive regions in the display. The touch sensor detects touch inputs by sensing changes in capacitance or other electrical properties when a user interacts with the display surface. The insulation layer ensures reliable touch performance by preventing unintended electrical coupling between the bridge electrode and the touch sensor. This configuration is particularly useful in displays where touch functionality must coexist with other conductive structures, such as signal routing or display components. The insulation layer may be made of a dielectric material, such as an organic or inorganic insulator, and can be deposited or patterned during the manufacturing process. The overall design improves touch accuracy and durability in integrated display systems.
23. The display device of claim 21 , wherein the bridge electrode or the touch sensor is in the form of a mesh, the mesh comprising a plurality of open areas.
A display device with an integrated touch sensor includes a bridge electrode or a touch sensor configured as a mesh structure. The mesh comprises multiple open areas that allow light to pass through, minimizing visual obstruction on the display screen. This design enhances transparency and improves the overall display quality by reducing the visibility of conductive elements. The mesh structure ensures electrical connectivity while maintaining optical clarity, making it suitable for high-resolution displays where touch functionality is required without compromising image quality. The open areas in the mesh are strategically arranged to balance conductivity and transparency, ensuring reliable touch detection while preserving the display's visual performance. This approach is particularly useful in applications such as smartphones, tablets, and other touch-sensitive electronic devices where both touch responsiveness and display clarity are critical. The mesh configuration can be applied to various conductive materials, including metal or transparent conductive oxides, to achieve the desired electrical and optical properties. The open areas may be uniformly or non-uniformly distributed depending on the specific design requirements. This innovation addresses the challenge of integrating touch sensors into displays without degrading visual quality, offering a solution that combines functionality and aesthetics.
24. The display device of claim 23 , further comprising a bank arranged on the anode electrode, the bank defining a plurality of pixel areas.
The invention relates to display devices, specifically addressing the challenge of precisely defining pixel areas in organic light-emitting diode (OLED) displays to improve manufacturing consistency and performance. The display device includes an anode electrode and a bank structure arranged on the anode electrode. The bank structure is designed to partition the anode electrode into multiple distinct pixel areas, ensuring accurate separation and alignment of light-emitting layers during deposition. This segmentation prevents cross-contamination between adjacent pixels, enhancing display uniformity and reliability. The bank structure may be formed from an insulating material and can include additional features such as openings or recesses to facilitate precise deposition of organic layers. The invention aims to optimize the manufacturing process of OLED displays by ensuring consistent pixel formation, reducing defects, and improving overall display quality. The bank structure's design also supports efficient material usage and simplifies the fabrication steps, making it suitable for high-resolution and large-area display applications.
25. The display device of claim 24 , wherein each of the plurality of open areas overlaps a corresponding one of the plurality of pixel areas.
A display device includes a substrate with a plurality of pixel areas and a plurality of open areas. The open areas are positioned such that each open area overlaps a corresponding pixel area. This configuration allows for improved light transmission or other functional benefits while maintaining the display's structural integrity. The pixel areas contain display elements such as light-emitting diodes (LEDs), organic light-emitting diodes (OLEDs), or liquid crystal elements, which generate or modulate light to produce images. The open areas may be transparent regions, apertures, or other structures that enhance functionality, such as enabling light to pass through the display for augmented reality applications, improving thermal dissipation, or reducing weight. The substrate may be rigid or flexible, and the open areas can be arranged in a pattern that aligns with the pixel areas to ensure uniform performance across the display. This design is particularly useful in high-resolution displays, transparent displays, or displays requiring enhanced thermal management.
26. The display device of claim 17 , wherein in the active area, the plurality of driving touch lines are arranged parallel to the plurality of data lines, and the plurality of sensing touch lines are arranged parallel to a plurality of gate lines.
A display device integrates touch sensing functionality within an active display area to enable simultaneous display and touch input detection. The device includes a plurality of driving touch lines and sensing touch lines arranged in a grid pattern. The driving touch lines are positioned parallel to the data lines, which supply pixel data to the display elements, while the sensing touch lines are aligned parallel to the gate lines, which control the timing of pixel charging. This arrangement allows touch signals to be transmitted and received without interfering with the display operation. The touch lines are embedded within the display panel, reducing the need for additional layers or external touch sensors. The device supports capacitive touch sensing by detecting changes in capacitance between the driving and sensing lines when a conductive object, such as a finger, interacts with the display surface. This integration simplifies manufacturing by combining touch and display functions into a single panel, improving durability and reducing thickness compared to traditional layered touchscreen designs. The system enables multi-touch input by independently driving and sensing multiple touch lines, allowing precise detection of multiple touch points simultaneously. The display device is suitable for applications requiring high-resolution touch input, such as smartphones, tablets, and interactive displays.
27. The display device of claim 17 , further comprising a thin-film-transistor having a gate electrode, a semi-conductor layer, a source electrode, and a drain electrode.
A display device includes a thin-film-transistor (TFT) structure integrated into its design. The TFT comprises a gate electrode, a semiconductor layer, a source electrode, and a drain electrode. The gate electrode controls the flow of current between the source and drain electrodes through the semiconductor layer, enabling switching and amplification functions. This TFT structure is used to drive pixels in the display, improving response times and image quality. The semiconductor layer may be made of materials like amorphous silicon, polycrystalline silicon, or oxide semiconductors, depending on performance requirements. The source and drain electrodes are positioned to form a conductive path when the gate electrode applies a voltage, allowing current to flow and activate the pixel. This TFT design enhances the efficiency and reliability of the display device, particularly in applications requiring high-resolution and fast-refresh-rate displays, such as smartphones, tablets, and televisions. The integration of the TFT ensures precise control over pixel activation, reducing power consumption and improving overall display performance.
28. The display device of claim 27 , wherein the plurality of driving touch pads or sensing touch pads include a lower touch pad electrode and an upper touch pad electrode.
A display device incorporates touch-sensitive functionality by integrating driving and sensing touch pads into the display structure. The touch pads are configured to detect touch inputs while maintaining display performance. The touch pads include a lower touch pad electrode and an upper touch pad electrode, which work together to sense touch interactions. The lower electrode may be positioned beneath the upper electrode, forming a capacitive sensing structure that detects changes in capacitance when a user touches the display. This dual-electrode configuration enhances touch sensitivity and accuracy by improving signal differentiation between touch and non-touch states. The electrodes are designed to operate without interfering with the display's visual output, ensuring clear visibility while enabling responsive touch input. The device may be used in applications such as smartphones, tablets, or interactive displays where touch interaction is essential. The touch pad electrodes are optimized to minimize signal noise and improve response time, providing a seamless user experience. The integration of these electrodes within the display stack allows for a slim, compact design while maintaining robust touch functionality.
29. The display device of claim 28 , wherein the lower touch pad electrode is formed in the same layer as the source electrode or the drain electrode.
A display device includes a touch-sensitive display panel with a lower touch pad electrode integrated into the display structure. The lower touch pad electrode is positioned below an upper touch pad electrode and is formed in the same layer as either the source electrode or the drain electrode of the display's thin-film transistor (TFT) circuitry. This integration reduces manufacturing complexity by eliminating the need for additional layers or processing steps. The touch pad electrodes enable capacitive touch sensing, allowing the display to detect user input while maintaining high display performance. The lower touch pad electrode's placement and material compatibility with the TFT electrodes ensure reliable touch functionality without interfering with the display's optical or electrical properties. This design is particularly useful in touchscreen displays where space efficiency and manufacturing simplicity are critical. The invention addresses the challenge of integrating touch sensing into displays without compromising display quality or increasing production costs.
30. The display device of claim 29 , wherein the upper touch pad electrode is formed in the same layer as the plurality of driving touch electrodes or the plurality of sensing touch electrodes.
A display device integrates touch sensing functionality with a display panel. The device includes a plurality of driving touch electrodes and a plurality of sensing touch electrodes arranged to detect touch inputs. An upper touch pad electrode is positioned above the display panel and is electrically connected to the driving or sensing touch electrodes. The upper touch pad electrode is formed in the same layer as either the driving or sensing touch electrodes, reducing manufacturing complexity and improving integration. This configuration allows the touch pad electrode to function as part of the touch sensing system while maintaining a compact and efficient design. The device may also include additional components such as a display panel, a touch sensor layer, and a protective layer, all structured to enable both display and touch sensing operations. The integration of the upper touch pad electrode with the existing touch electrode layers simplifies the manufacturing process and enhances the overall performance of the touch-sensitive display.
31. The display device of claim 30 , further comprising a touch pad contact hole formed through the touch insulation layer and the touch buffer layer, wherein the lower touch pad electrode is connected to the upper touch pad electrode in the touch pad contact hole.
A display device includes a touch sensor integrated with a display panel to detect touch inputs. The touch sensor comprises a lower touch pad electrode and an upper touch pad electrode, separated by a touch insulation layer and a touch buffer layer. The lower touch pad electrode is positioned below the touch insulation layer, while the upper touch pad electrode is positioned above it. To electrically connect these electrodes, a touch pad contact hole is formed through both the touch insulation layer and the touch buffer layer. This contact hole allows the lower and upper touch pad electrodes to be physically and electrically connected, ensuring proper signal transmission between the layers. The touch sensor may also include additional components such as a touch routing line connected to the upper touch pad electrode, which extends through another contact hole in the touch insulation layer. The display device may further incorporate a color filter layer, a black matrix, and a common electrode, depending on the specific configuration. This design enables precise touch detection while maintaining the structural integrity of the display panel.
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January 12, 2021
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